Surface-layer modification of hydroxyapatite ceramic with acid and heat treatments.

@article{Kon2002SurfacelayerMO,
  title={Surface-layer modification of hydroxyapatite ceramic with acid and heat treatments.},
  author={Masayuki Kon and Luciana Mayumi Hirakata and Youji Miyamoto and F Kawano and Kenzo Asaoka},
  journal={Dental materials journal},
  year={2002},
  volume={21 2},
  pages={170-80}
}
The purpose of this study was to examine or characterize the surface layer of a calcium phosphate ceramic with a gradual compositional change from alpha-tricalcium phosphate (alpha-TCP) on the surface to hydroxyapatite (HAP) on the inside. The surface of a dense HAP ceramic was acid-treated for 1 hour with orthophosphoric acid (H3PO4) solutions of several concentrations (0.5, 1.0 and 5.0 mol/L) or a buffered solution (pH 4.0) consisting of phosphate solutions. After acid treatment, specimens… CONTINUE READING